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Finding the Third Proportional to 96.25 and 129

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Solution

The third proportional to 96.25 and 129 is: 172.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    96.25 : 129 = 129 : x
  2. Step 2: Convert to fraction form
    96.25/129 = 129/x
  3. Step 3: Cross multiply
    96.25x = 129 × 129
  4. Step 4: Simplify right side
    96.25x = 16,641
  5. Step 5: Solve for x
    x = 16,641/96.25
  6. Step 6: Final answer
    x = 172.89

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Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.